This thread is more like about sharing suggested amazing applications, some may be included in elive some not, but stills good to show "the possibilities", could be good to include them in screenshots in a future elive website page too
I just found this one, seems awesome:
Unfortunately doesn't looks like it can be included by default (not sure about the license), maybe only from a script? but in any case, good if we can show that "you can do this from elive" in the website
Anybody that is a bit on the Video topic and want's to try it, is welcome 
, and in such case, a specific article about this software is also welcome (which will be good for SEO matches to elive too!) 
Blackmagic Design DaVinci Resolve has a paid Studio version and a free version, all available for Mac, Windows, or Linux. A common question we are asked is what you get with the Studio version and if it's worth the investment. The free version is robust on its own and may be enough for many users.
Not open source if that's what you're wondering.
There was a thread about it a while ago.